WASSELL TBS-09-0466 Norton Commando Evolution Carb Left L/h 32MM

( Brand: Wassell ), ( Manufacturer Part Number: TBS-09-0466 )

Review WASSELL Norton Commando Spec L/h Evolution 32mm Carb Left Pn# fits 850

The Wassell TBS-09-0466 carburetor is a high-performance replacement option for the left 32mm carburetor on Norton 850 Commando L models. This carburetor is part of Wassell's Evolution series, which is designed to provide improved power delivery, throttle response, and fuel economy compared to the original equipment.

This carburetor features a number of upgrades over the stock unit. The body is made from high-quality aluminum alloy, which is both lightweight and durable. The bore size is 32mm, which is standard for the Norton 850 Commando L, but the internal components have been redesigned for optimal performance.

One of the most notable upgrades is the use of Mikuni TM38 flat slide throttle bodies. These throttle bodies feature a larger bore diameter and a flatter slide profile, which reduces friction and improves air flow. The result is smoother throttle response and more consistent power delivery.

The carburetor also includes a high-performance air filter element, which helps to ensure that the engine receives a clean and consistent air supply. The float bowls have been redesigned with larger capacities to provide better fuel delivery, especially during acceleration.

The jetting on this carburetor has been specifically tuned for the Norton 850 Commando L, with a focus on improving low-end torque and mid-range power. The main jet is a size 140, the pilot jet is a size 45, and the needle is a B1. These jetting sizes may vary depending on the specific riding conditions and fuel quality.

Installing this carburetor is a relatively straightforward process, but it does require some mechanical expertise. The kit includes all of the necessary hardware for installation, including new gaskets and mounting brackets. It's recommended that the installation be performed by a qualified mechanic to ensure that it's done correctly and safely.

In summary, the Wassell TBS-09-0466 carburetor is a high-performance replacement option for the left 32mm carburetor on Norton 850 Commando L models. It features Mikuni TM38 flat slide throttle bodies, larger float bowls, and specifically tuned jetting for improved power delivery and throttle response. It's a great choice for riders who want to get the most out of their Norton 850 Commando L and are looking for a reliable and effective upgrade.

Pros and Cons of Buying a Wassell TBS-09-0466 Carburetor for a Norton 850 Commando (Left, Evolution 32mm)

The Wassell TBS-09-0466 carburetor is a popular aftermarket option for those looking to improve the performance of their Norton 850 Commando motorcycle. In this analysis, we will explore the key advantages and disadvantages of investing in this particular carburetor model.

1. Enhanced Performance: The 32mm carburetor offers a larger fuel mixture delivery, which results in increased power and torque, making your Commando more responsive and agile.

2. Improved Fuel Economy: A well-tuned carburetor can help optimize fuel consumption, resulting in better mileage and reduced fuel costs.

3. Customizability: The Wassell TBS-09-0466 carburetor is highly adjustable, allowing riders to fine-tune the fuel mixture to their specific riding style and conditions.

4. Durable Construction: Wassell carburetors are known for their robust and reliable design, which can help reduce the need for frequent repairs and maintenance.

5. Classic Appeal: The traditional look and feel of the Wassell carburetor can add to the overall aesthetic appeal of your Norton 850 Commando.

1. Cost: Aftermarket carburetors like the Wassell TBS-09-0466 can be quite expensive, especially when compared to stock options.

2. Installation Complexity: Installing a new carburetor requires a significant amount of time, effort, and expertise. It may be necessary to hire a professional mechanic to ensure proper installation and tuning.

3. Tuning Requirements: Properly tuning the carburetor can be a time-consuming and intricate process, which may require the use of specialized tools and techniques.

4. Potential For Issues: Although the Wassell TBS-09-0466 carburetor is known for its durability, any aftermarket part carries the risk of potential issues and complications.

The Wassell TBS-09-0466 carburetor offers several advantages, such as enhanced performance, improved fuel economy, customizability, and durability. However, these benefits come with a higher cost, complex installation process, and the potential for tuning issues. Ultimately, the decision to invest in a Wassell carburetor depends on your priorities, budget, and level of expertise. If you're willing to invest the time, effort, and resources into optimizing your Norton 850 Commando's performance, a Wassell TBS-09-0466 carburetor could be an excellent choice.

For those who are committed to optimizing their Norton 850 Commando's performance and have the necessary resources and expertise, the Wassell TBS-09-0466 carburetor is a worthwhile investment. However, for riders who prioritize affordability and ease of use, a stock or off-the-shelf aftermarket carburetor may be a more suitable choice. Always ensure that you have the necessary tools, knowledge, and support to properly install and tune the carburetor to achieve the best results.

part # tbs090466 prices

• $285.67-$547.68

specifications iodacarb:

• for models: 850
• brand: Wassell
• manufacturer part number: TBS-09-0466

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• started: November 13, 2025
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• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Carburetors

Wassell TBS-09-0466 Is Similar To:

• Wassell 928/300 Evolution Right Hand 28mm Bore 4 Stroke Carburetor - 9/28r (43.7% similar) $162.19–$170.78. (September 23rd, 2024)